| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alfred Cox | Crew | Editing | Editor, Sound Editor |
Anthony Hinds | Crew | Production | Producer |
 Bernard Robinson | Crew | Art | Production Design |
Dorothy Holloway | Crew | Production | Casting |
George Baxt | Crew | Crew | Additional Dialogue |
Henry Montsash | Crew | Costume & Make-Up | Hairstylist |
Hurford Janes | Crew | Crew | Additional Dialogue |
Jack Asher | Crew | Camera | Director of Photography |
 Jimmy Sangster | Crew | Writing | Writer |
Jock May | Crew | Sound | Sound Recordist |
Leonard Salzedo | Crew | Sound | Original Music Composer |
 Mary Shelley | Crew | Writing | Characters |
 Michael Carreras | Crew | Production | Executive Producer |
Philip Leakey | Crew | Costume & Make-Up | Makeup Artist |
Rosemary Burrows | Crew | Costume & Make-Up | Costume Design |
 Terence Fisher | Crew | Directing | Director |
 Arnold Diamond | Cast | Actor | Molke |
Avril Leslie | Cast | Girl | |
 Charles Lloyd Pack | Cast | Actor | President |
Eugene Leahy | Cast | Kleine (uncredited) | |
 Eunice Gayson | Cast | Actress | Margaret Conrad |
 Francis Matthews | Cast | Actor | Dr. Hans Kleve |
 George Woodbridge | Cast | Actor | Janitor |
 John Stuart | Cast | Actor | Inspector |
 John Welsh | Cast | Actor | Bergman |
 Lionel Jeffries | Cast | Actor | Fritz |
 Michael Gwynn | Cast | Actor | Karl |
 Michael Ripper | Cast | Actor | Kurt |
 Oscar Quitak | Cast | Actor | Dwarf |
 Peter Cushing | Cast | Actor | Dr. Victor Stein |
 Richard Wordsworth | Cast | Actor | Up Patient |
Robert Brooks Turner | Cast | Actor | Joseph the Groom (uncredited) |
Ian Whittaker | Cast | Actor | Boy |
Marjorie Gresley | Cast | Countess Barscynska | |
Jimmy Charters | Cast | Patient (uncredited) | |
John Tatham | Cast | Manservant (uncredited) | |
Julia Nelson | Cast | Inga (uncredited) | |
Charles Gilliard | Cast | Actor | Policeman (uncredited) |
Anna Walmsley | Cast | Actress | Vera Barscynska |
| Person | Type | Job | Role(s) |
